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No. 277,900. Patented May 22,1883.

hlyeasses UNITED STATES PATENT OFFICE.

HENRY H. HAYES, 0F NEW YORK, N. Y.

lPOWDER-Busreis;

SPECIFICATION forming part of Letters Patent No. 277,900, dated May 22, 1883.

Application tiled August 23, 1882. (No model.)

To all whom it may concern:

Vpump into the lower part of the receptacle, a

valve arranged at the lower end of said pipe for precluding the powder from being drawn into the pump, and a delivery-pipe .extending into the upper part of the receptacleonly., and having a suitable nozzle or'distributing end.

Thev accompanying drawing is a sectional side view of a powder. gun or blower embodying my improvement.

A designates the powder-receptacle.' lt may consist ot' a glass bottle with n. cork` B, or a screw'cap or other stopper iittedto the month for closing it. Y

C designates the pump for forcing air into the said receptacle. It consists, as here shown, ot'a'bulb of ndia-rubber, having at one end :in arinlet, a, controlled by a Hap-valve, b, which may consist ot' india-rubber or other suitable material, and is hinged at b', so that it may swing back away from the inleta upon the ingress of air induced b v the expansion of the said bulb after compression, and will close against the inlet when the bulb is compressed, so as to preclude the escape, oi' air through the said inlet. When rit is swung back, airinay pass around it and through grooves c in the device against which it then iinpinges.

l) designates an air-pipe, preferably made ot' metal, and extending from the other end ot' the said bulb through the stopper B and downward into the lower part of the receptacle.

In addition to the valve b, I employ av valve for precluding the powder from being drawn `into the bulb of the pump C when said bulb is compressed. This valve is arranged at the lower end of the air-pipe, so as to also preclude powder from bein g drawn into 'said pipe when the said bulb is compressed. It may consist of a small bulb, d, of india-rubber, having an incision, d', and adapted to open and shut when subjected to the pressure ot' air on opposite sides.

As shown, the pump C is supported wholly by the air-pipe, and lies against the exterior ot' the. powder-receptacle. It may be compressed by the hand while holding the said receptacle.

E designates the delivery-pipe. It may be made of metal, and extends inward into the upper part of the receptacle only; but it may extend outward from the stopperB in any desired direction. At the end itlnay have a noz zle, c; but preferably it 'will be of the same capacity throughout. t

When the bulb of the pump is compressed, air is forced through the airpipeinto the powder-receptacle, and when it is allowed to expand air enters it through the inlet a. The air forced into "the receptacle A through the air-pipe l) is impelled downward against the bottom of the receptacle, and by its reaction throws the powder upward, keeping the receptacle filled with a cloud of' powder. The delivery-pipe E, as it extends into the upper part of the receptacle only, is in a position to receive the powder as it is thrown up.

What I claim as my invention, and desire to secure by Letters Patent, is-

'.lhe combination of a receptacle for the powder, apump for forcing air, an air-pipe extending fi'om the pump into the lower part of the receptacle, a valve arranged at the lower end ot' said pipe for precludiug the powder from being drawn into the pump, and a delivery-pipe extending into the upper part ofthe receptacle only, and having a suitable nozzle or distributing end, substantially as specified.

p H. H. HAYES. Witnesses: T. J. KEANE, JAMES R. BOWEN. 

